ATE522993T1 - ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNAL - Google Patents
ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNALInfo
- Publication number
- ATE522993T1 ATE522993T1 AT08705116T AT08705116T ATE522993T1 AT E522993 T1 ATE522993 T1 AT E522993T1 AT 08705116 T AT08705116 T AT 08705116T AT 08705116 T AT08705116 T AT 08705116T AT E522993 T1 ATE522993 T1 AT E522993T1
- Authority
- AT
- Austria
- Prior art keywords
- input signal
- determining
- characteristic
- subsequent samples
- preamble
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/0028—Correction of carrier offset at passband only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/0034—Correction of carrier offset using hypothesis testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0083—Signalling arrangements
- H04L2027/0089—In-band signals
- H04L2027/0093—Intermittant signals
- H04L2027/0095—Intermittant signals in a preamble or similar structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/042—Detectors therefor, e.g. correlators, state machines
Abstract
A receiver and method for determining a characteristic from an input signal is disclosed. A characteristic is at least one selected from a group comprising preamble detect, frequency offset and timing offset. The input signal comprises an IF frequency fIF and a preamble signal which is a sequence of M similar data symbols. The data symbols have a symbol period SP, and M is an integer greater than or equal to 2. The method comprises: -receiving N subsequent samples of the input signal, the N subsequent samples representing a part of the input signal approximating the symbol period SP, -rotating N subsequent samples to obtain N rotated symbols; -correlating the N rotated symbols with P correlation functions to generate a set of N×P correlation values, P being an integer greater than or equal to 2; and, -selecting a maximum correlation value from the set of N×P correlation values and determining the characteristic. The invention enables to perform an efficient antenna diversity circuit, which can be used for simultaneously timing offset and frequency offset estimation, and preamble detection for both antennae with only one radio unit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/NL2008/050047 WO2009093892A1 (en) | 2008-01-25 | 2008-01-25 | Arrangement for determining a characteristic form of an input signal |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE522993T1 true ATE522993T1 (en) | 2011-09-15 |
Family
ID=40076639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT08705116T ATE522993T1 (en) | 2008-01-25 | 2008-01-25 | ARRANGEMENT FOR DETERMINING A CHARACTERISTIC SHAPE OF AN INPUT SIGNAL |
Country Status (5)
Country | Link |
---|---|
US (1) | US8531981B2 (en) |
EP (1) | EP2235871B1 (en) |
JP (1) | JP5238824B2 (en) |
AT (1) | ATE522993T1 (en) |
WO (1) | WO2009093892A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8849226B2 (en) * | 2009-08-13 | 2014-09-30 | Cascoda Limited | Wireless receiver |
GB2472774B (en) * | 2009-08-13 | 2011-10-05 | Cascoda Ltd | Wireless receiver |
WO2011018626A2 (en) * | 2009-08-13 | 2011-02-17 | Cascoda Limited | Wireless receiver |
EP2781031B1 (en) * | 2011-11-16 | 2019-05-15 | NXP USA, Inc. | Direct sequence spread spectrum signal receiving device and method |
US8824606B2 (en) * | 2012-01-30 | 2014-09-02 | Qualcomm Incorporated | Multiple correlators for communication device detection |
US9432077B2 (en) * | 2012-02-08 | 2016-08-30 | Texas Instruments Incorporated | DSSS preamble detection for smart utility networks |
KR101844409B1 (en) * | 2012-10-23 | 2018-04-03 | 삼성전자주식회사 | Wireless energy transmission apparatus and method thereof, wireless energy transmission system |
EP3084970A1 (en) | 2013-12-18 | 2016-10-26 | Greenpeak Technologies B.V. | Common gate multiple input low noise amplifier |
CN107852380B (en) | 2015-04-16 | 2020-11-03 | Qorvo国际私人有限公司 | Multi-channel snoopable receiver and method of operation thereof |
EP3160072B1 (en) * | 2015-10-19 | 2019-10-02 | Yamar Electronics Ltd. | Transceiver for asynchronous data transmission over a noisy channel |
KR102422082B1 (en) | 2015-11-12 | 2022-07-15 | 코르보 인터내셔널 피티이. 엘티디. | Simultaneous Multi-Radio Receiver |
CN105577228B (en) * | 2015-12-16 | 2018-03-09 | 西安空间无线电技术研究所 | A kind of jump extended code phase-tracking method suitable for arrowband interference |
WO2017192089A2 (en) * | 2016-05-05 | 2017-11-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Detection sequence for d2d communication |
WO2018004332A1 (en) | 2016-06-28 | 2018-01-04 | Greenpeak Technologies B.V. | Robust radio packet acquisition in the presence of continuous wave interference |
US10784935B2 (en) * | 2016-07-19 | 2020-09-22 | Phazr, Inc. | Systems and methods for bandwidth expansion and frequency scaling |
US10129014B2 (en) * | 2017-01-25 | 2018-11-13 | Samsung Electronics Co., Ltd. | System and method of performing initial timing synchronization of receivers of modulated signals |
US10667102B2 (en) | 2017-11-29 | 2020-05-26 | Qorvo Us, Inc. | Data detector |
US10425895B2 (en) * | 2017-12-15 | 2019-09-24 | Redpine Signals, Inc. | Power-save system for detection of Bluetooth long range packets |
KR102457566B1 (en) * | 2018-02-22 | 2022-10-21 | 한국전자통신연구원 | Modem performing modulation or demodulation based on length of burst in a data packet and a method performed by the modem |
US11133890B2 (en) | 2019-03-07 | 2021-09-28 | Qorvo Us, Inc. | Adaptive multi-standard signal classification and synchronization |
US11283516B1 (en) | 2021-08-02 | 2022-03-22 | Hubble Network Inc | Multi spoke beamforming for low power wide area satellite and terrestrial networks |
US11569904B1 (en) * | 2021-08-02 | 2023-01-31 | Hubble Network Inc. | Differentiating orthogonally modulated signals received from multiple transmitters at one or more antenna arrays |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH088780A (en) * | 1994-06-23 | 1996-01-12 | Toshiba Corp | Correlation device and spread spectrum communication system |
JP3441301B2 (en) * | 1996-07-10 | 2003-09-02 | 株式会社東芝 | Receiver and synchronization acquisition circuit |
US6058150A (en) * | 1997-09-30 | 2000-05-02 | Wireless Access, Inc. | Method and apparatus for combined timing recovery, frame synchronization and frequency offset correction in a receiver |
JP2003046418A (en) * | 2001-08-03 | 2003-02-14 | Uniden Corp | Diversity receiver |
US7203254B2 (en) | 2003-03-25 | 2007-04-10 | Motorola, Inc. | Method and system for synchronizing in a frequency shift keying receiver |
US7839923B2 (en) * | 2005-06-22 | 2010-11-23 | Marvell World Trade Ltd. | Method and system for equalizing received signals in communications systems |
JP4918135B2 (en) * | 2006-07-12 | 2012-04-18 | グリーンピーク テクノロジーズ ビー.ブイ. | Receiver for receiving data symbols having a symbol period |
-
2008
- 2008-01-25 AT AT08705116T patent/ATE522993T1/en not_active IP Right Cessation
- 2008-01-25 EP EP08705116A patent/EP2235871B1/en not_active Not-in-force
- 2008-01-25 US US12/863,395 patent/US8531981B2/en active Active
- 2008-01-25 WO PCT/NL2008/050047 patent/WO2009093892A1/en active Application Filing
- 2008-01-25 JP JP2010544249A patent/JP5238824B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2009093892A1 (en) | 2009-07-30 |
JP2011510593A (en) | 2011-03-31 |
US8531981B2 (en) | 2013-09-10 |
US20110051612A1 (en) | 2011-03-03 |
EP2235871A1 (en) | 2010-10-06 |
EP2235871B1 (en) | 2011-08-31 |
JP5238824B2 (en) | 2013-07-17 |
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Legal Events
Date | Code | Title | Description |
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RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |